Tail gas washing tower for producing slow-release compound fertilizer

The utility model relates to a tail gas washing tower for producing slow-release compound fertilizer in the technical field of fertilizer production equipment, which comprises a tower body, a detachable cover plate is arranged at the top of the tower body, a sleeve is arranged in the tower body and comprises a plurality of cylinders I and cylinders II which are sleeved together in a staggered manner, the bottoms of the cylinders I are fixedly connected with the bottom of the tower body, and the bottoms of the cylinders II are fixedly connected with the bottom of the tower body. A gas inlet pipe and a liquid discharge pipe I are arranged at the bottom of the tower body, the top of the cylinder II is fixedly connected with the lower surface of the cover plate, and a gas outlet is formed in the cover plate corresponding to the cylinder II positioned in the innermost part of the sleeve; a transition cavity is fixed to the cover plate, the air outlet is communicated with the transition cavity, a spraying pipe is a